To research the characteristics and treatment measures of landslide disaster along the tower foundation in EHV transmission lines, taking the 157 tower landslide disaster in Huangyan-Daxian EHV transmission line as an example, the development characteristics, disaster characteristics, formation mechanism and development trend of the landslide were analyzed, combined with the geological environment and hydro-meteorological conditions in the landslide area. According to the main influence factors of landslide, such as regional structure, surface water and so on, comprehensive disaster mitigation measures were suggested, which mainly adopted drainages system, cracks filling and anti-slide pile, and was in combination with the deformation and displacement monitoring of tower foundation. All of these measures can provide references for the treatment measures of landslide geological disasters in transmission lines in the future.